In 2002 the European Union (EU) introduced the Directive on Privacy and Electronic Communications. Article 13 of the Directive prohibits the use of personal email addresses for marketing purposes. The Directive establishes the opt-in regime, where unsolicited emails may be sent only with prior agreement of the recipient; this does not apply to business email addresses.
3. Email converts better. People who buy products marketed through email spend 138% more than those who do not receive email offers. In fact, email marketing has an ROI of 3800%. That’s huge! And if you are wondering if social media converts even better, think again: the average order value of an email is at least three times higher than that of social media.